Partager

Formation de coulis de glace basé sur les nanofluides et une surface de refroidissement hydrophobe.

Ice slurry formation based on nanofluid and hydrophobic cooling surface.

Auteurs : WU P., ZHANG X. J., QIU L. M.

Résumé

In this study, an emulsion adding nanoparticles and dispersants was investigated to dispel the ice adhered to the cooling surface. Various nanoparticles, such as alpha-Al(2)O(3), gamma-Al(2)O(3), TiO(2) and SiO(2) were studied in this paper. Polyoxyethylene (10) nonyl phenylether (referred to as TX-10) and sodium dodecylbenzenesulfonate were used as the surfactants to make the aqueous solution stable and even, as well as the ultrasonic vibration. The hydrophobic surface coating with two kinds of waterproof dope were studied. Through the experiments, it is concluded that the nanoparticles make a well improvement in enhancing thermal conductivity and decreasing the supercooling degree. Besides, the low surface energy imparted by the waterproof dope coated is responsible for the formation of lotus effect preventing ice from adhesion to the cooling wall, combined with the breakage of the temperature boundary layer near the cooling wall by the stirrer.

Détails

  • Titre original : Ice slurry formation based on nanofluid and hydrophobic cooling surface.
  • Identifiant de la fiche : 2008-2536
  • Langues : Anglais
  • Source : Cryogenics and refrigeration. Proceedings of ICCR'2008.
  • Date d'édition : 05/04/2008

Liens


Voir d'autres communications du même compte rendu (170)
Voir le compte rendu de la conférence

Indexation